﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using XYW.DBUtility;//Please add references
namespace XYW.DAL
{
	/// <summary>
	/// 数据访问类:Blogs
	/// </summary>
	public partial class Blogs
	{
		public Blogs()
		{}
		#region  Method

		/// <summary>
		/// 得到最大ID
		/// </summary>
		public int GetMaxId()
		{
		return DbHelperSQL.GetMaxID("ID", "Blogs"); 
		}

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(int ID)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from Blogs");
			strSql.Append(" where ID=@ID");
			SqlParameter[] parameters = {
					new SqlParameter("@ID", SqlDbType.Int,4)
			};
			parameters[0].Value = ID;

			return DbHelperSQL.Exists(strSql.ToString(),parameters);
		}


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(XYW.Model.Blogs model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into Blogs(");
			strSql.Append("title,contents,pubDate,userId,userName,classify,purview,type)");
			strSql.Append(" values (");
			strSql.Append("@title,@contents,@pubDate,@userId,@userName,@classify,@purview,@type)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@title", SqlDbType.VarChar,280),
					new SqlParameter("@contents", SqlDbType.VarChar),
					new SqlParameter("@pubDate", SqlDbType.DateTime),
					new SqlParameter("@userId", SqlDbType.Int,4),
					new SqlParameter("@userName", SqlDbType.VarChar,50),
					new SqlParameter("@classify", SqlDbType.Int,4),
					new SqlParameter("@purview", SqlDbType.Int,4),
					new SqlParameter("@type", SqlDbType.Int,4)};
			parameters[0].Value = model.title;
			parameters[1].Value = model.contents;
			parameters[2].Value = model.pubDate;
			parameters[3].Value = model.userId;
			parameters[4].Value = model.userName;
			parameters[5].Value = model.classify;
			parameters[6].Value = model.purview;
			parameters[7].Value = model.type;

			object obj = DbHelperSQL.GetSingle(strSql.ToString(),parameters);
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 更新一条数据
		/// </summary>
		public bool Update(XYW.Model.Blogs model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("update Blogs set ");
			strSql.Append("title=@title,");
			strSql.Append("contents=@contents,");
			strSql.Append("pubDate=@pubDate,");
			strSql.Append("userId=@userId,");
			strSql.Append("userName=@userName,");
			strSql.Append("classify=@classify,");
			strSql.Append("purview=@purview,");
			strSql.Append("type=@type");
			strSql.Append(" where ID=@ID");
			SqlParameter[] parameters = {
					new SqlParameter("@title", SqlDbType.VarChar,280),
					new SqlParameter("@contents", SqlDbType.VarChar),
					new SqlParameter("@pubDate", SqlDbType.DateTime),
					new SqlParameter("@userId", SqlDbType.Int,4),
					new SqlParameter("@userName", SqlDbType.VarChar,50),
					new SqlParameter("@classify", SqlDbType.Int,4),
					new SqlParameter("@purview", SqlDbType.Int,4),
					new SqlParameter("@type", SqlDbType.Int,4),
					new SqlParameter("@ID", SqlDbType.Int,4)};
			parameters[0].Value = model.title;
			parameters[1].Value = model.contents;
			parameters[2].Value = model.pubDate;
			parameters[3].Value = model.userId;
			parameters[4].Value = model.userName;
			parameters[5].Value = model.classify;
			parameters[6].Value = model.purview;
			parameters[7].Value = model.type;
			parameters[8].Value = model.ID;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}

		/// <summary>
		/// 删除一条数据
		/// </summary>
		public bool Delete(int ID)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from Blogs ");
			strSql.Append(" where ID=@ID");
			SqlParameter[] parameters = {
					new SqlParameter("@ID", SqlDbType.Int,4)
			};
			parameters[0].Value = ID;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		/// <summary>
		/// 批量删除数据
		/// </summary>
		public bool DeleteList(string IDlist )
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from Blogs ");
			strSql.Append(" where ID in ("+IDlist + ")  ");
			int rows=DbHelperSQL.ExecuteSql(strSql.ToString());
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
		public XYW.Model.Blogs GetModel(int ID)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select  top 1 ID,title,contents,pubDate,userId,userName,classify,purview,type from Blogs ");
			strSql.Append(" where ID=@ID");
			SqlParameter[] parameters = {
					new SqlParameter("@ID", SqlDbType.Int,4)
			};
			parameters[0].Value = ID;

			XYW.Model.Blogs model=new XYW.Model.Blogs();
			DataSet ds=DbHelperSQL.Query(strSql.ToString(),parameters);
			if(ds.Tables[0].Rows.Count>0)
			{
				if(ds.Tables[0].Rows[0]["ID"]!=null && ds.Tables[0].Rows[0]["ID"].ToString()!="")
				{
					model.ID=int.Parse(ds.Tables[0].Rows[0]["ID"].ToString());
				}
				if(ds.Tables[0].Rows[0]["title"]!=null && ds.Tables[0].Rows[0]["title"].ToString()!="")
				{
					model.title=ds.Tables[0].Rows[0]["title"].ToString();
				}
				if(ds.Tables[0].Rows[0]["contents"]!=null && ds.Tables[0].Rows[0]["contents"].ToString()!="")
				{
					model.contents=ds.Tables[0].Rows[0]["contents"].ToString();
				}
				if(ds.Tables[0].Rows[0]["pubDate"]!=null && ds.Tables[0].Rows[0]["pubDate"].ToString()!="")
				{
					model.pubDate=DateTime.Parse(ds.Tables[0].Rows[0]["pubDate"].ToString());
				}
				if(ds.Tables[0].Rows[0]["userId"]!=null && ds.Tables[0].Rows[0]["userId"].ToString()!="")
				{
					model.userId=int.Parse(ds.Tables[0].Rows[0]["userId"].ToString());
				}
				if(ds.Tables[0].Rows[0]["userName"]!=null && ds.Tables[0].Rows[0]["userName"].ToString()!="")
				{
					model.userName=ds.Tables[0].Rows[0]["userName"].ToString();
				}
				if(ds.Tables[0].Rows[0]["classify"]!=null && ds.Tables[0].Rows[0]["classify"].ToString()!="")
				{
					model.classify=int.Parse(ds.Tables[0].Rows[0]["classify"].ToString());
				}
				if(ds.Tables[0].Rows[0]["purview"]!=null && ds.Tables[0].Rows[0]["purview"].ToString()!="")
				{
					model.purview=int.Parse(ds.Tables[0].Rows[0]["purview"].ToString());
				}
				if(ds.Tables[0].Rows[0]["type"]!=null && ds.Tables[0].Rows[0]["type"].ToString()!="")
				{
					model.type=int.Parse(ds.Tables[0].Rows[0]["type"].ToString());
				}
				return model;
			}
			else
			{
				return null;
			}
		}

		/// <summary>
		/// 获得数据列表
		/// </summary>
		public DataSet GetList(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select ID,title,contents,pubDate,userId,userName,classify,purview,type ");
			strSql.Append(" FROM Blogs ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			return DbHelperSQL.Query(strSql.ToString());
		}

		/// <summary>
		/// 获得前几行数据
		/// </summary>
		public DataSet GetList(int Top,string strWhere,string filedOrder)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select ");
			if(Top>0)
			{
				strSql.Append(" top "+Top.ToString());
			}
			strSql.Append(" ID,title,contents,pubDate,userId,userName,classify,purview,type ");
			strSql.Append(" FROM Blogs ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			strSql.Append(" order by " + filedOrder);
			return DbHelperSQL.Query(strSql.ToString());
		}

		/// <summary>
		/// 获取记录总数
		/// </summary>
		public int GetRecordCount(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) FROM Blogs ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			object obj = DbHelperSQL.GetSingle(strSql.ToString());
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("SELECT * FROM ( ");
			strSql.Append(" SELECT ROW_NUMBER() OVER (");
			if (!string.IsNullOrEmpty(orderby.Trim()))
			{
				strSql.Append("order by T." + orderby );
			}
			else
			{
				strSql.Append("order by T.ID desc");
			}
			strSql.Append(")AS Row, T.*  from Blogs T ");
			if (!string.IsNullOrEmpty(strWhere.Trim()))
			{
				strSql.Append(" WHERE " + strWhere);
			}
			strSql.Append(" ) TT");
			strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
			return DbHelperSQL.Query(strSql.ToString());
		}

		/*
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetList(int PageSize,int PageIndex,string strWhere)
		{
			SqlParameter[] parameters = {
					new SqlParameter("@tblName", SqlDbType.VarChar, 255),
					new SqlParameter("@fldName", SqlDbType.VarChar, 255),
					new SqlParameter("@PageSize", SqlDbType.Int),
					new SqlParameter("@PageIndex", SqlDbType.Int),
					new SqlParameter("@IsReCount", SqlDbType.Bit),
					new SqlParameter("@OrderType", SqlDbType.Bit),
					new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
					};
			parameters[0].Value = "Blogs";
			parameters[1].Value = "ID";
			parameters[2].Value = PageSize;
			parameters[3].Value = PageIndex;
			parameters[4].Value = 0;
			parameters[5].Value = 0;
			parameters[6].Value = strWhere;	
			return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
		}*/

		#endregion  Method
	}
}

